Coal Pre-Ignition Detection System0 pages

Coal Pre-Ignition Detection System
Forney’s Coal Pre-Ignition Detection System (CPDS) enables safe management of coal processing, transportation
and storage facilities through its accurate sensing and early warning of excessive CO accumulation.

Product Overview

Features & Benefits

The Forney CPDS is used for continuous monitoring

•t M ulti - channel sampling system
handles up to eight sample points
and eliminates system time
sharing.

of CO for early detection of potential fires in your coal
processing, transportation and storage. The complete
CPDS includes up to eight F-7400 CPDS extractive probe
systems, a sample handling system, a F-6700 CPDS
Analyzer and system controls.
The F-6700 CPDS Analyzer is the heart of the system
and continuously monitors dry CO concentrations from
up to eight individual points in mills, silos or bunkers. The
19” rack mounted analyzer contains the user interface,
system controller and a manifold with up to sixteen
electrochemical sensors configured one pair per sample

•t F-6700 CPDS A nalyzer uses
a solid-state electrochemical
sensor for its ruggedness and low
maintenance requirements.
•t P roprietary probe allows the
extraction of a representative
sample from the dust-laden
atmosphere.
•t D ual sensor arrangement provides
accuracy verification every 30
minutes.
•t T emperature compensated sensors
ensure accuracy and reliability.

point.
The analyzer houses up to eight dual sensor arrangements
which are designed for continuous monitoring of CO.
The sixteen electrochemical sensors are mounted as
a set of two per channel allowing 30 minute sensor
switching to refresh the inactive cells with zero gas,
lengthening the life of the sensors while eliminating
system time sharing. The sensors are overlapped

•t A utomatic calibration check and
alarming functions in the system
itself reduces maintenance time.
•t S elf - diagnostic program identifies
any problem and indicates it on
the user interface display.
•t A gency

approval :

CE

for a period of five minutes and the two values are
compared to verify sensor integrity. Provided the
sensor values are within a preset range of each
other, the switching is completed and the cycle is
repeated.

Forney Corporation • 3405 Wiley Post Road • Carrollton, TX 75006 • 800-356-7740 • Fax 972-458-6650 • www.forneycorp.com

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